Hello, just notifying you about two changes in the Autotools build
Updating the minimum required Autoconf from 2.68 to 2.71:
master ← petk:patch-autoconf-version
opened 04:38PM - 07 Feb 26 UTC
This updates the minimum required Autoconf version to 2.71.
- Autoconf versio… ns 2.70 started supporting C11 standards.
- Autoconf 2.71 was released soon after 2.70 providing some bugfixes.
Changes:
- Removed obsolete AC_PROG_CC_C99 macro. In Autoconf 2.70 and later this is done by the AC_PROG_CC macro.
- m4_normalize is not needed for AC_CHECK_HEADERS and AC_CHECK_FUNCTIONS macros anymore, as the argument is normalized internally by Autoconf in these newer versions.
- Adjusted C11 check.
- Removed ac_cv_header_sys_types_h_makedev hack for AC_HEADER_MAJOR macro when using Autoconf versions prior to 2.70.
This also enables using --runstatedir configure option in the future.
Updating the bundled Libtool to current version 2.5.4 (or if there
master ← NattyNarwhal:update-libtool
opened 08:47PM - 28 Jan 26 UTC
The version of libtool we're using is old enough to vote, and occasionally issue… s crop up related to it (i.e. this should fix GH-17310 incidentally). Update it to the latest version from upstream (serial 63 from 2.5.4). I don't believe we carry any patches that don't just replicate fixes in newer versions, so it should be OK to just use upstream's version. Newer libtool has more files that we have to include manually if not using aclocal, and some macro names were changed, so adapt to this.
Tested on linux/ppc64 and macos/arm64, with autoconf 2.72. I'm a little worried about the impact this might have on other platforms since this is a major bump. In particular, AIX might be turbulent, since library naming conventions changed a lot in libtool.
On Mon, 9 Feb 2026 at 23:29, Peter Kokot <petk@php.net> wrote:
Hello, just notifying you about two changes in the Autotools build
Updating the minimum required Autoconf from 2.68 to 2.71:Require Autoconf 2.71 or newer by petk · Pull Request #21159 · php/php-src · GitHub
Updating the bundled Libtool to current version 2.5.4 (or if thereUpdate libtool to newer version by NattyNarwhal · Pull Request #21067 · php/php-src · GitHub
I'm bumping this topic again just in case it got lost back then as
The libtool update has been merged to master branch for the upcoming